A few years ago Deborah Devantier posted this on a message board, and I must have missed it at the time:

I am researching my husband’s family tree and know that his gradfather Otto Wilhelm Devantier arrived with his mother and 6 siblings in Queensland Australia in 1874. Unfortunately his father died on the voyage out and all we know was that he was Carl Wilhelm Friedrich Devantier born 1834 in Schonermark. Other names that are given on marriage and death certificates are Schwedt, Angemunde, Niederlandin and Uckermark. I realise there was a large Devantier family in this area, and have seen the family trees posted on the web. Would very much like to connect Carl Wilhelm Friedrich.

I do have a link to this family, and can give information on ancestors, and hope to get some on descendants. So I hope Deboarh (and other Devantier researchers) will get in touch.

Hi, I have found behind a picture the confirmation certificate for Emily Devantier Born 1882. If this is part of your family you are welcome to it.There is also a photo from another picture backing I believe, belongs to the family.